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ARM: LPAE: use phys_addr_t in switch_mm()

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This patch modifies the switch_mm() processor functions to use phys_addr_t.
On LPAE systems, we now honor the upper 32-bits of the physical address that
is being passed in, and program these into TTBR as expected.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Subash Patel <subash.rp@samsung.com>
[will: fixed up conflict in 3-level switch_mm with big-endian changes]
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Cyril Chemparathy
2012-07-16 15:37:06 -04:00
committed by Will Deacon
parent de22cc6e33
commit 13f659b0f3
2 changed files with 14 additions and 6 deletions
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4
arch/arm/include/asm/proc-fns.h
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@@ -60,7 +60,7 @@ extern struct processor {
/*
* Set the page table
*/
void (*switch_mm)(unsigned long pgd_phys, struct mm_struct *mm);
void (*switch_mm)(phys_addr_t pgd_phys, struct mm_struct *mm);
/*
* Set a possibly extended PTE. Non-extended PTEs should
* ignore 'ext'.
@@ -82,7 +82,7 @@ extern void cpu_proc_init(void);
extern void cpu_proc_fin(void);
extern int cpu_do_idle(void);
extern void cpu_dcache_clean_area(void *, int);
extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
extern void cpu_do_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm);
#ifdef CONFIG_ARM_LPAE
extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte);
#else